Drawing-machine for coke-ovens.



No. 631,064. Patented Aug. 2o, mol.

B. D. MARTIN. DHAWNGMACHINE FUR UUKE (WENS.

(Appnceion'med sept. 27, 1900.)

(No Model.) h 5 Sheets-Sheet 2.

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No. 68|,064. Patented Aug. 2.0, I90l.

` R. D. MARTIN.

i DRAWING MACHINE FR COKE VENS.

(Application filed Supt. 27, 1900.)

5 Sheets-Sheet 3.

(No Model.)

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No. s8|,o64.' f PatentedAug. 2o, 190|.

mllmsmm.r DRAWING MACHIN FOB COKE VYENS.

(Appli'qaeion me@ sept. 27, 1900.) (No Model.) f 5 sheetssheet 4.

ms 'nomma mens co., WO1-ammo., wAsmmfrcm4 n4 c No. 6a|,us4. l Patented Aug. 2o, 190|.

Y n. n. MARTIN. v l

DRAWING vMACHINE FOB COKE UVENS.

(Application filed Sept. 27, 1900..) I (no Model.) 5 sheets-sheets.

UNiTEDF STATES' PATENT Grains.

,i `RICHARD DANIEL MARTIN, OF ADDERSON, INDIAN TERRITORY.

DRAWING-MACHINE FOR COKE-OVENS.

SPECIFICATION forming part of Letters Patent No. 681,064, dated August 20, 191.

' Application filed September 27, 1900. Serial No. 31,299. (No model.)

the following is a full, clear, and exact de.`

` scriptiOn.

The invention relates to coke-ovens and its obJects are to provide a new and improved drawing-machine arranged to readily remove the products from the coke-oven, to separate the ashes from the coke, and to deliver the same in separate heaps at one side of the machine. i

The inveutionconsists of novel features and parts and combinations of the same, as will be `fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented inthe accompanying drawings, forming a part of this specification, in which .similar characters of reference indicate corresponding parts in all the views.

`Figure l is an end elevation of the machine as applied to a coke-oven, shown in section. Fig. 2 is an enlarged plan View of the improvement. Fig. 3 is a transverse section of the same on the line 3 3 in Fig. 2. Fig. et is `a sectional side elevation of the same on the line 4 4. in Fig.` 3. Fig. 5 is a perspective view of the device for moving the scraper sidewise. Fig. 6 is a plan View of the notched segment for locking the said device in position. i Fig.

7 `is an enlarged transverse section of the scraper and adjacentparts. Fig. 8 is an enlarged face view of the centrifugal clutch. Fig. 9 is a sideelevation of the device for swinging the scraper into a normal position. Fig. 10 is a plan view of the same with part in section. Fig. 1l is a face view of the quadrant for looking the said scraper-swinging device in position. Fig. 12 is a like view of the locking-key for the quadrant. Fig. 13 is a perspective view of the coke-oven doorcasing, and Fig. le is a like view of the chute for a dumping attachment to the door-easing to deliver the products of the oven to the elevator.

The improved drawing-machine is mounted on a flat railroad-car A, mounted to travel on rails B, arranged in front of a coke-oven C,

from which the products are removed at the proper time by a scraper D through the cokeoven door-casing C over a chute E into an inclined elevator F, having its outer upper portion formed with a grate F' for separating the ashes from the coke and causing the ashes and coke to fallin separate heaps at one side of the track B.

In order to give the desired movement to the scraper D and to move the railroad-car Aialong the rails B from one coke-oven to the other, a reversing-engine Gr is employed, mounted on the car A and carrying on its driving-shaft G a sprocket-wheel H, over which passes a sprocket-chain I-I, also passing over a sprocket-Wheel H2, secured on one end of a shaft H3, extending longitudinally on the car A and journaled in suitable bearingstherein. On the shaft H3 is secured a bevel gear-wheel H4 in mesh with a bevel gear-Wheel H5, secured ou the lower end of a shaft I, set at its lower end in a step I', fulcrumed loosely on the shaft H3 to permit the shaft I to swing up or down at a right angle to the shaft H2. The upper end of the shaft I is adapted to be journaled in a bearing I2, arrangedfor convenient opening to disengage the shaft I whenever it is desired to give 4a swinging motion to the said shaft, as before mentioned. The bearing I2 is held on an arm A2 of a post A', and said upper end of the shaft I is also engaged by one end of a chain I3, fastened to the arm A2, to limit the swinging motion of the shaft I. On the free end of the arm A2 is secured a transversely-extending notched beam A2, engaged by a similarly-notched beamA4, adapted to abut against the outer face of the cokeoven C, so as to steady the machine during the time the scraper D is in operation, as hereinafter more fully described.

On the shaft I is secu red a bevel gear-wheel J (see Fig. 4) in mesh with a bevel gearwheel J', secured on one end of a shaft J2, journaled at one end in a bearing J2, mounted to swing loosely on the shaft I, so that the `shaft J2 can swing at a right angle to the shaft I and in a horizontal plane when the shaft I is in a vertical position-that is, stepped in the step I and journaled in the bearing I2. `The shaft J2 forms the fulcruin for the scraperfguideway D', Fig. 2, and the outer IOO end of said shaft is journaled in a block J4, supported by an arm J3, mounted loosely on the shaft I by means of an eye J6, secured on the arm J 5and resting on a collar I4, fastened on the shaft I, as will be readily understood by reference to Fig. 4. The block J4 is provided on its lower end with a flange J7, on which is formed a block J 8, carrying a handle J 9, adapted to be taken hold of by the operator to im part movement to said block J 3, and thereby swing the shaft J2 around with the shaft I as the fulcrum. The block J8 is provided with teeth J 40, adapted to engage a fixed notched segment A7 for normally locking the block J 8 and the block J 4 in position, said notched segment A7 being supported by brackets A5, carried on a post A6, secured to the platform of the car A. When it is desired to swing the shaft J2 around, as previously mentioned, it is necessary for the operator to swing the handle J9 upward, so as to disengage the teeth J10 from the segment A7, and by the operator thus pressing the handle J9 sidewise a similar movement ins given to the block J 4. to impart a swinging motion to the shaft J 3 with the shaft I as the fulcrum.

The scraper-guideway D", previously mentioned, is preferably made of two angle-irons (see Fig. 7) suitably spaced apart and rigidly connected with each other by transverse staybolts D2, and the scraper-beam D3 is mounted to slide in said scraper-guidewayDand is likewise made of two angle-irons spaced apart and rigidly connected with each other by staybolts D4. Friction-rollers D5 are journaled at one end of the scraper-beam D3 and travel on the under side of the guideway D' to reduce friction to a minimum, and on the forward end of said scraper-beam D3 is fastened a head D6, on which is fulcrumed the head D7of the scraper-blade D8, adapted to engage the material in the coke-oven and move the same transversely in the same toward and through the door-casing C' upon and down the chute E. When the scraper-beam D3 moves inward, the scraper-blade l)8 swings into an inclined position, so as to readily pass over the material in the coke-oven, and when the beam reaches an innermost position and is somewhat elevated then the blade D8 swings into its forward vertical position, and when the scraper-beam D3 is moved outward, with the lower end of the scraper-blade in contact with the material in the coke-oven, then the head D7 abut-s against the head D6, so as to hold the scraper-blade D8 against rearward swinging movement-that is, in an approximately right-angular position to the scraper-beam D3. (See Fig. l.) The outer end of the scraper-beam D3 is rigidly connected by a'block D9 with the lowerl run of an endless sprocket-chain K in mesh with a sprocket-wheel K', secured on the shaft J 3, so

that when thel latter is rotated in one direcv tion and a corresponding traveling motion is given to the sprocket-chain K then the scraperbeam D3 is moved in its guideway D in an inward direction, and when the engine G is reversed and the shaft J2 is turned in the opposite direction then the sprocket-chain K likewise moves in an opposite direction to move the scraper-beamD3 in an outward direction for moving the material in the cokeoven through the door-casing upon and over the chute E to the elevator F, as above explained. The sprocket-chain K passes loosely at its ends over rollers K3, journaled in the guideway D', and friction-rollers K3 engage the top run of said sprocket-chain K to hold said top run in mesh with the sprocket-wheel K'. The sprocket-wheel K is flanked by loose pulleys K4 to carry the side links of the sprocket-chain K and relieve the said sprocket-wheel K of undue strain from said sprocket-chain K. The scraperguideway D is reinforced at its fulerum-that is, at the shaft J 2by an inverted-U-shaped band Q, Fig. 3, having longitudinally-extending braces Q reaching from the band lengthwise to the sides of the guideway D.

The elevator F, into which the coke material is passed from the oven C, as previously explained, is provided with an elevator-frame having a bottom F2 and slatsF3, moving over the said bottom, to elevate the material as the latter is discharged by the chute E upon the said bottom. The slats F3 are secured on sprocket-chains F4, passing at their 4upper ends over sprocket-Wheels F5, mounted on al shaft journaled in suitable bearings on the upper outer end of the elevator-frame, and the lower ends of the said sprocket-chains F4 pass over sprocket-wheels F6, secured on a shaft F7, extending longitudinally of the car above the platform thereof. On the shaft F7 is secured a spur-wheel F 3 in mesh with a spur-- wheel F7, mounted to rotate loosely on the shaft H3 and adapted to be engaged at the inner face of its rim by weights N, in the form of disks, pivotedto the arms of a spider N', fastened on the shaft H3. When the latter is rotated in one direction, the weights N swing outward in frictional contact with the rim of the gear-Wheel F9 to turn the latter in the direction in which the shaft is rotated; but when the engine is reversed and the shaft H3 turns in the opposite direction then the weights N simply glide over the rim of the gearwheel F9 Without turning the same. Thus during the forward running of the engine the shaft F7 is at a standstill, and only when the engine is reversed is said shaft F7 rotated to give a traveling motion to the slats F3 of the elevator F and move the previouslydeposited material from the coke-oven up the IOO IIO

bottom F2 to separate the coke from the ashes at the grate F and to discharge the coke at the end of the grate F at one side of the machine, but in a heap separate from that of the ashes.

In order to move the carA along the track i B to bring the scraper to the oven for removing the contents thereof, I provide the following device: The shaft O, extend-ing transcancel;

\ suitable bearings therein, is provided with a i shifting collar O', engaged by a shifting fork` O2, connected by a link O3 with a hand-lever O4 under the control of the operator and adapted to be locked on a segment O5, carried on the car-platform. On the shaft O is secured a bevel-pinion O6 and a spur-wheel O7, of which the bevel-pinion O6 is adapted to mesh with the bevel gear-wheel H4 at the time the shaft O is moved outward by the operator manipulating the lever O4 accordingly, so

. that when the engine G is in motion the rotary motion given to the shafts H3 and I causes a rotary motion of the bevel gear- `wheels H4 and 0"?, so that the shaft O is rotated, and with it the spur-wheel O7. The latter upon the rotation of the shaft O is moved` i of mesh with the bevel gear-wheel H4, so that the rotary motion of the latter does not rotate the shaft O and the gear-wheels O7 O2. The door-casing C of the coke-oven is provided in its sides-with bayonet-slots C2, adapted to be engaged by pins E on the chute E, so that the latter can be readily attached to or detached from the door-casing for the purpose mentioned.

. It is understood that in order to reach the material in any part of the oven it is necessary for the operator to manipulate the handle J9 to swing the shaft J2, and with it the scraper D, in-a horizontal plane, and in order to swing said scraper up or down to bring the scraper-blade D8 in proper relation to the material in the oven I provide the` following device: A chain L is secured to the scraperguideway Dat one side of the shaft J2, and this chain L is secured to and winds on a pulley L', loosely journaled in the horizontal `plane of the rod J5.

(See Figs. l, 2, 3, 4, 9, `and 10.) On the pulley L" is secured a handle L2, adapted to be taken hold of by the operator to turn the pulley L' and wind up or unwind the chain L, according to the desired' inclination to be given to the scraper-guideway lD' and its beam D5. On the handle L2 is pivoteda hand-lever L5, connected with a spring-pressed pawl L4, adapted to engage a notched segment L5, secured on the horizontal member of the rod J5, so as to lock the handle L2, and with it the pulley L', in position after the desired inclination is given to the scraper D. In case the pawl Lffails to engage the notched segment L5 the scraper is prevented from dropping by an auxiliary locking device in the form of a key L6, (see Fig. 12,) adapted to be inserted `in one of a series of keyholes L7 in the notched segment L5, as is plainly shown in Fig. 1l. The bit L5 of the key prevents the latter from accidentally disengaging the segment,\it being understood that the key is turned after inseri tion to bring the bit out of register with the keyhole.

Vhen it is desired to move the machine from one coke-oven to another, the beam D3 is moved outward in the guideway D to its full extent, and in order to withdraw the forward end of the guideway D and the blade D3 from the oven it is necessary to swing the shaft I outward, and for this purpose the bearing I2 is opened to allow the shaft I to swing forward, and with it the scraper, so as to disengage the same wholly from the cokeoven and allow of moving the oar-platform along to the next oven. Whenthe next oven is reached, the shaft I is swung back to its former position, and then the bearing I2 is closed and the engine is again started to move the beam Ds outward on the guideway D to carry the scraper-blade Ds into the oven to engage the material and to be then moved outward to scrape the material through the door-casing C' over the chute E upon the elevator F. During this outward movement of the scraper-blade DS the elevator is at a standstill, and when the engine is reversed` to move the scraper-beam again inwardin the oven the elevator is set in motion by the action of the centrifugal clutch (shown in Fig. S) to elevate the previously-discharged` material and to separate the ashes from the coke and cause the coke to dropoff the elevatorframe at one side of the track B.

On the bottom of the scraper-guideway D', near the outer end thereof, is fulcrumed a a lever P for manually moving the scraperbeam I)3 outward at the time the scraper is to be passed into a coke-oven, it being understood that this lever P extends across the path of the scraper-beam and the latter abuts on the lever at the timethe beam is completely telescoped' in the guideway. When` the `scraperbeam is in this position,` the sprocket-chain sections Duand D12 are on the sprocket-wheel K', and even if the latter were now rotated it would not impart motion to the sprocket-chain and the scraper-beam. Hence the latter is first shifted manually by the lever P, and in doing so the sprocketchain is caused to travel a distance to bring IOO IIO

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the non-active links D1l D12 away from the i A has been moved in position in front of a coke-oven and the shaft I is swung back into a vertical position, then the scraper-blade D5,

the front end of the scraper-beam D2,and that i of the guidewayD' extend through the doorcasing C into the coke-oven, and the operator now moves the lever P and brings the chain K in mesh with the sprocket-wheel K', as above explained. The operator now manipulates the starting and reversing lever G2 of the engine G to run the latter forward,- so that by the gearing described a traveling motion is given to the chain K and to the scraperbeam D3 to move the scraper-blade D8 inward, the latter draggingv over the contents of the oven by the blade assuming an inclined position. When the blade D8 has moved' the desired distance into the oven, the operator reverses the lever G2 to cause the engine to run inV a reverse direction, and thereby move the scraper-beam D3 and scraper-blade D8 outward, it being understood that on the beginning of the return movement the scraperblade assumes an approximately vertical position to draw the material in front of it toward and Athrough the door casing and over the chute E upon the elevator F. 'When the scraper-beam D3 has reached the end of its outward stroke, the operator again manipulates the lever G2 to run the engine forward and to return the scraper-blade to an innermost position. The above-described operation is then repeated as often as necessary in the oven, it being understood that the guideway D is set at such inclination by means of the chain L, the handle L2, and the locking device therefor that the lower edge of the scraper-blade can pass to the bottom of the oven. After a passage is formed the operator by manipulating the handle J9, as above described, swings the guideway D', and with it the scraper-beam D3 and blade D8, to one side,'and then the above-described operation is repeated-that is, the scraper-beam is caused to travel alternately inwardly and outwardly to clear the sides of the oven of the coke material. Thematerial discharged into the elevator is elevated during the inward movement ofthe scraper-beam, as above explained, so that the lower. portion of the elevator is free of material on the next outward stroke of the beam and readily receives a new charge to be elevated. When an oven has been cleaned, the 'scraper -beam D3 is moved completely outward in its guideway, and then the bearing I2 is opened to permit of swingingthe shaft I, and with it the scraper D, transversely to move the scraper-blade and the ends of the scraper-beam and scraperguideway out of the oven C. The car is now vpropelled to move the machine to another oven for cleaning the same of its contents, as above described.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. A drawing-machine having a scraper, provided with a scraper beam and blade having a reciprocating movement, a shaft on which said scraper is fulcrumed to swing up and down, a second shaft on which the firstestos-i comprising a scraper-guideway, a scraperbeam mounted to slide thereon, a -scrape-rblade hung on said beam, a horizontally-arranged shaft on which said guideway is fulcrumed to swing up and down, means for actuating the scraper-beam from said shaft, a vertical shaft on which one end of said horizontal shaft is fulcrumed, whereby the said horizontal shaft and the guideway may be swung laterally, gearing between the said shafts, and a shaft arranged to drive the said vertical shaft and on which the latter is mounted to swing as set forth.

3. A drawing-machine having a scraper, comprising a scraper-guideway, a scraperbeam mounted to slide thereon, a scraperblade hung on said beam and having a limited swinging motion, a vertical shaft on which said scraper is mounted to swing laterally, the said shaft being fulcrnmed at one end and detachably held at the other end, means for rotating the said shaft, and means the scraper-beam from said shaft,as set forth.

4. A drawing machine, comprising a scraper, a horizontally arranged shaft on which said scraper is fulcrnmed to swing up and down, a vertically-arranged shaft mounted to swing up and down and carrying the said fulcrum-shaft of the scraper, a driving connection between the shafts, and means for driving the said verticallyarranged shaft, as set forth.

5. A drawing-machine having a scraper, a vertically arranged shaft on which said scraper is mounted to swing laterally, the said scraper being also mounted t-o swing up and down and provided with a scraper beam and blade, means for actuating the scraperbeam from said shaft, and a shaft arranged for imparting a reciprocating movement to Ioo IIO

to drive the said vertically-arranged shaft and on which the lower end of the latter is fulcrnmed as set forth.

6. A drawing-machine, having a scraper comprising a scraper-guideway mounted to swing up and down, a scraper-beam mounted to slide on said guideway, a scraper-blade hung on said beam, a vertically-arranged shaft on which said guideway is mounted to swing laterally, means for laterally swinging the guideway on said shaft, means for driving the scraper-beam from said shaft, a shaft geared with the vertically-arranged shaft and on which one end of the latter is fulcrnmed, the other end of said vertically arranged shaft being detachably supported, so that the said shaft can be swung on its `fulcrum, as set forth.

7. A drawing-machine having a scraper comprising a scraperguideway, a scraperbeam mounted to slide thereon, a scraperl the upper end of said shaft being journaled in a bearing arranged to be opened to disengage the shaft, whereby said shaft may be swung on its fulcrum to move the guideway and the scraper-beam bodily, and means for imparting a reciprocating movement to the scraper-beam, as set forth.

8. A drawing-machine comprising a car,

. an engine thereon, a scraper mounted on the car and adapted to be set in motion from the said engine to drawthe material out of the oven, an elevator on said car and upon which passes the material drawn by the scraperout of the oven, and means for actuating the elevator on the return or inward stroke of the scraper, the said means comprising a shaft connected with the `elevatorl to drive `the same and provided with a spur-wheel, and a second shaft provided with a spur -wheel mounted to rotate loosely on the shaft and in 1 mesh with the first-mentioned spur-wheel, and means for locking said spur-wheel to the saidsecond shaft when the latter is rotated in one direction, as set forth.

9. A drawing-machine, comprising a car, an engine thereon, a scraper mounted on the car and adapted to be set in motion from the said engine to draw the material out of the i oven, an elevator on said car and upon which passes the material drawn by the scraper out of the oven, a chute leading from the ovendoor casing to said elevator, and means for removably connecting the said chute with the oven-door casing as set forth.

l0. A drawing-machine having a scraper comprising a` scraper guideway, a scraperbeam mounted to slide thereon, a scraperblade hung on said beam, an endless chain mounted to travel in a forward and backward direction and arranged in said guideway and directly connected with the scraper-beam, a shaft on which the scraper-guideway is fulcrumed to swing up and down, means for operatingthe endless chain from said shaft, a second shaft geared with the first-mentioned shaft and on which one end of said first-mentioned shaft is fulcrumed, a main or driven shaft geared with the said second shaft and on which the latter is mounted to swing, and

` standing at an angle to the first-named shaft and on which the latter is mounted to swing as a f ulcrum,means for swinging the said firstmentioned shaft and with it the scraper, a

locking device forsaid means, and a driven shaft geared with the said second shaft and on which the latter is mounted to swing7 as set forth.

12. A drawing machine, comprising a scraper, a shaft on which the scraper is fulcrumed, means for actuating the scraper from the said shaft, a second shaft geared with and standing at an angle to the first-named shaft and on which the latter is mounted to swing as a fulcrum,and a main or driven shaft geared with the said second shaft and on .which the latter is mounted to swing as a ful- `crum, as set forth.

13. A drawing machine, comprising a scraper, a shaft on which the scraper is fulcrumed, means for actuating the scraper from the said shaft, a second shaft geared with and standing at an angle to the first-named shaft and on which the latter is mounted to `swing as a fulcrum, a main or driven shaft geared with the said second shaft and on which the latter is mounted to swing as a fulcrum, and means for limiting the swinging motion of the said second shaft., as set forth.

14. A drawing machine, comprising `a scraper, a shaft on which the scraper is fulcrumed, means for actuating the scraper from said shaft, a second shaft geared with and standing at an angle to the first-named shaft and on which the latter is mounted to swing as a fulcrum, and means for manually swinging the said second shaft and with it `the scraper, as set forth.

l5. A drawing machine, comprising a scraper, a shaft on which the scraper is fulcrumed, means for actuating the scraper from said shaft, a second shaft geared with and standing at an angle to the first-named shaft and on which the latter is mounted to swing as a fulerum, means for manually swinging the said second shaft and with it the scraper, and a locking 'device for the said means, as set forth.

16. A drawing machine, comprising a scraper-beam, a guideway on which said beam is mounted to slide, a shaft on which the scrapenguideway is fulcrumed, means for actuating the scraper-beam from the said shaft, to reciprocate the same, a second shaft geared with and standing at an angle to the firstnamed shaft and on which the latter is mounted to swing as a fulcrum, to move the said scraper-guideway and scraper in a horizontal plane, means for swinging the first-mentioned shaft on the second shaft and means for rotating the said second shaft in a forward and backward direction, as set forth.

17. A drawing machine, comprising a scraper proper, a guideway for said scraper, a shaft on which the guideway is fulcrumed, to move up and down, means for actuating the scraper from the said shaft, a second shaft geared with and standing at an angle to the first-mentioned shaft and on which the latter is mounted to swing as a fulcrum, means for swinging the said shaft on said fulcrum,

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means for moving thescraper-guideway on its f ulcrum to raise and lower the scraper proper, and means for rotating the second shaft in a forward and back direction as set forth.

18. A drawing-machine having a scraper, comprising a scraper-guideway, a scraperbeam mounted to slide thereon, a scraperblade hung on said beam, an endless chain mounted to travel in a forward and backward direction, and arranged in the said guideway and directly connected with the said scraperbeam, means, substantially as described, for imparting a forward and backward traveling motion to the said chain, said chain having non-active sections, and a driven sprocketwheel for engaging the said chain, as set forth.

19. A drawing-machine having a scraper, comprising a scraper-guideway, a Vscraperbeam-mounted to slide thereon, a scraperblade hung on said beam, an endless chain mounted to travel in a forward and backward direction, and arranged in the said guideway and directly connected with the said scraperbeam, means, substantially as described, for imparting a forward and backward traveling motion to the said chain, said chain having non-active sections, a driven sprocket-wheel for engaging the said chain, and a lever on the guideway, for moving the said scraperbeam manually, and moving the non-active sections out of mesh with the sprocket-Wheel, as set forth.

20. A drawing machine, comprising a scraper, a shaft onwhich the scraper is fulcrumed, means for rotating said shaft, means for actuating the scraper from said shaft, a chain connected with the scraper at one side of the shaft, a pulley carrying the said chain, a handle on the said pulley for turning the latter, and a locking device for said handle, as set forth.

21. A drawing-machine having a scraper mounted to swing, a chain connected with the scraper at one side of its fulcrum, a pulley carrying the said chain, a handle on the said pulley, for turning the latter, and a locking device for said handle, said locking device comprising ahand-lever,a pawl and anotched segment, and a key for insertion in the notched segment, to limit the swinging motion of the handle, as set forth.

22. A drawing machine comprising a scraper, a shaft on 'which the scraper is fulcrumed, means for actuating the scraper from said shaft, a second shaft geared with and standing at an angle to the first-named shaft and on which one end of said first-named shaft is mounted to swing, a block in which the outer end of said first-named shaft is journaled an arm supporting said block and having a vertical member connected at its lower end to said block and a horizontal member mounted loosely at its end on the said second shaft, means for moving the said block to impart a swinging motion to the said firstnamed shaft and the scraper, and a locking device for the said means, as set forth.

23. A drawing machine comprising a scraper, a shaft on which the scraper is fulcru med, means for actuating the scraper fromsaid shaft, a second shaft geared with and standing at an angle to the first-named shaft and on which one end `of said rst-named shaft is mounted to swing, a block in which the other end of said Erst-named shaft is journaled, an arm supporting said block and having a vertical member connected to the block and a horizontal member mounted loosely at its end on the said second shaft, means for moving the said block to impart a swinging motion to the saidfirst-named shaft and the scraper, a pulley mounted to turn on the horizontal member of the said arm, and a chain connected with the scraper at one side of its fulcrum and carried by the said pulley, as set forth.

24. A drawing machine, comprising a scraper-guideway, a scraper-beam mounted to slide on said guideway, a horizontallyarranged shaft on which the scraper-guideway is fulcrumed to swing up and down, means for reciprocating the lscraper-beam from said shaft, a vertically-arranged shaft to which the first-mentioned shaft is geared and on which it is mounted to swing, a longitudinally-extending shaft geared with the said vertically-arranged shaft, and having a step f ulcrumed thereon, and in which the said vertically-arranged shaft is set, and means for driving the said longitudinallyextending shaft, as set forth.

25. In a drawing-machine, a car, an engine thereon, a shaft extending longitudinally of the car and journaled in bearings carried thereby, the said shaft being driven from the engine-shaft, a vertically-arranged shaft set at its lower end in a step fulcrumed loosely on the rst-mentioned shaft, a bearing in which the upper end 0f said shaft is removably secured, so that said shaft can be swung up and down on its fulcrnm, gearing between the said shafts, a scraper havinga guideway and a scraper-beam mounted to slide on said guideway, a shaft on which the scraperguideway is fulcrumed to swing up and down, the latter shaft being mounted at one end to swing on the vertically-arranged shaft and geared thereto, means for reciprocating the scraper-beam from the shaft on which the guideway is fulcrumed, an elevator on said car, and means for actuating the elevator on the return or inward stroke of the scraper, as set forth.

In testimony whereof I lhave signed my name to this specification in the presence of two subscribing witnesses.

RICHARD DANIEL MARTIN.

Witnesses:

F. L. WATSON, Guo. HUDSON.

TOO

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